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  • On the evaluation of dust characteristics using dispersed analysis of variance of additive-simplex type to reduce particle leakage out from the dust in the dust aspiration’ collectors building industry

    The article is devoted to the issue of improving the environmental safety of the construction industry by improving dust collectors of dust removal systems for the aspiration schemes of the construction industry/ It was proposed use additive-integrated dispersive analysis of variance of dust particles emissions throw out into the atmosphere by aspiration systems. The article proposes the improvement of complex analysis of variance using hydrodynamic criteria in output functions. Modified output data and additive-simplex allows getting approach to evaluate characteristics - equivalent sizes and speeds of sedimentation-soiling of dust particles with a higher degree of accuracy of the results. It makes possibility to determine the ranges of size’s and velocities’ changes with real ability. It is possible to obtain more reliable data of sedimentation rates and equivalent particle sizes for the studied dust samples of building materials using the distributions of the hydrodynamics criteria. Analytical approach to determining the density’ distribution of the numerical values of the hydrodynamics criteria in the output function allowed us to clarify the more real values of sedimentation rates and the equivalent particle sizes and the range of their changes both. This way analysis of variance of dispersed dust particles could call additive-complex or simplex approach. The obtained regressions in processing the research results were used in the development of devices for capturing dust of dispersed building materials from emissions. This way could significantly reduced dust leakage out from aspiration collectors of decreasing dust systems while purifying emissions at the building enterprises. This approach is one of the most effective ways to improve the environmental safety of the building industry.

    Keywords: Dust, building material, dust collector, cleaning, leakage, analysis of variance, velocity, sedimentation, criterion, emission, atmosphere, dust removal, aspiration

  • Experimental dust particle leakage’s evaluation through the wet separator in the decreasing dust aspiration system of cement manufacturing

    This article describes a way of reducing dust emissions of pollutions exhausted in the atmosphere in the manufacture of cement applying high effective wet dust cleaners with a combined scheme of separation of dust from the gas flow within systems cutting dusting aspiration. It was observed a short description of main technological processes, devices and related major sources of emissions and discharges of pollutants into the atmosphere in the cement manufacture in this article. It was described an industrial survey of a representative sample of aspiration systems and of cement’s enterprises using dust precipitators within those system. There concern the main results of the dispersed analysis of variance dimension’s particle of cement dust stemming and exhausting from the kilns in this article. There is describe a new wet dust cleaner cutting emissions of dust pollution aspiration schemes from kiln cement oven into atmosphere. It was fulfill experimental research to get evaluation of the leakage’s degree of dust particles mean as outlet exhaust’s coefficient for the elaborated wet dust cleaner. It was obtain treatment dependence of the outlet exhaust’s coefficient in the regression’s dependence as function of several parameters within research work field for this wet dust precipitator parameters. The tests showed that developed wet scrubbing dust collector reduced significantly cement dust emissions exhausting in the atmosphere and high degree of reliability one’s.

    Keywords: Dust, cement, sand, cleaning apparatus, wet cleaning, building material, leakage, dispersed analysis, emission, scheme, an atmosphere, dust decreasing

  • Analysis of variance of dust emissions from aspiration systems cement manufacture with using improved experimental setup

    There presented paper presents the survey of industrial systems of aspiration and the results of analysis of variance of cement dust released from the equipment in this article. It was described the main technological processes, devices and related major sources of emissions and discharges of pollutants into the atmosphere in the cement factories in this paper. It was proposed a common generalized approach to determine the actual effective or hydraulic sized dust particles using by new experimental set up equipment to get high accuracy. It could be done using the results of analysis of variance (ANOVA) for sand’s dust and etc. bulk building construction materials. The development of new experimental set up equipment was ensured to decrease some negative influence of the old one. It was made a comparison changing cumulative distribution of the equivalent size of dust particles within aspiration schemes. I was fulfilled the comparison changing cumulative distribution of the equivalent size of dust particles after wet cleaners and inertial separation’s device (VZP) decreasing dust systems of aspiration schemes emissions exhausted in the atmosphere in the production of cement. The paper presents the ways to define cumulative distribution function depending of the equivalent size of dust particles of statistical processing the results of the analysis of variance by polynomial regression.

    Keywords: Dust, cement, sand, cleaning apparatus, wet cleaning, building materials, wet cleaning, leakage, emissions, environment, scheme, an atmosphere, dust decreasing